SIGNALS: I. Survey Description
Abstract
SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing program designed to investigate massive star formation and HII regions in a sample of local extended galaxies. The program will use the imaging Fourier transform spectrograph SITELLE at the Canada-France-Hawaii Telescope. Over 355 hours (54.7 nights) have been allocated beginning in fall 2018 for eight consecutive semesters. Once completed, SIGNALS will provide a statistically reliable laboratory to investigate massive star formation, including over 50 000 resolved HII regions : the largest, most complete, and homogeneous database of spectroscopically and spatially resolved extragalactic HII regions ever assembled. For each field observed, three datacubes covering the spectral bands of the filters SN1 (363 -386 nm), SN2 (482 - 513 nm), and SN3 (647 - 685 nm) are gathered. The spectral resolution selected for each spectral band is 1000, 1000, and 5000, respectively. As defined, the project sample will facilitate the study of small-scale nebular physics and many other phenomena linked to star formation at a mean spatial resolution of 20 pc. This survey also has considerable legacy value for additional topics including planetary nebulae, diffuse ionized gas, andsupernova remnants. The purpose of this paper is to present a general outlook of the survey, notably the observing strategy, galaxy sample, and science requirements.
Cite
@article{arxiv.1908.09017,
title = {SIGNALS: I. Survey Description},
author = {L. Rousseau-Nepton and R. P. Martin and C. Robert and L. Drissen and P. Amram and S. Prunet and T. Martin and I. Moumen and A. Adamo and A. Alarie and P. Barmby and A. Boselli and F. Bresolin and M. Bureau and L. Chemin and R. C. Fernandes and F. Combes and C. Crowder and L. Della Bruna and F. Egusa and B. Epinat and V. F. Ksoll and M. Girard and V. Gómez Llanos and D. Gouliermis and K. Grasha and C. Higgs and J. Hlavacek-Larrondo and I. -T. Ho and J. Iglesias-Páramo and G. Joncas and Z. S. Kam and P. Karera and R. C. Kennicutt and R. S. Klessen and S. Lianou and L. Liu and Q. Liu and A. Luiz de Amorim and J. D. Lyman and H. Martel and B. Mazzilli-Ciraulo and A. F. McLeod and A-L. Melchior and I. Millan and M. Mollá and R. Momose and C. Morisset and H. -A. Pan and A. K. Pati and A. Pellerin and E. Pellegrini and I. Pérez and A. Petric and H. Plana and D. Rahner and T. Ruiz Lara and L. Sánchez-Menguiano and K. Spekkens and G. Stasińska and M. Takamiya and N. Vale Asari and J. M. Vílchez},
journal= {arXiv preprint arXiv:1908.09017},
year = {2019}
}
Comments
19 pages, 14 figures, submitted to MNRAS